High pressure RHEED for PLD chamber/ Système RHEED à haute pression pour une chambre d'ablation laser

这项赠款申请建议购买高压反射高能电子衍射(RHEED)系统，并将其安装在现有的定制设计的脉冲激光烧蚀沉积(PLD)腔体上。这种原位表征工具将有助于监测薄膜生长过程中的表面。所获得的信息将使我们能够更好地控制生长过程，以便显著提高外延薄膜的质量，甚至针对材料的特定终端层。因此，它将在控制沉积在多层电子设备中的两种连续材料之间的界面方面发挥重要作用，这些材料可能会显示出奇异的新奇行为。所有这些项目都将涉及氧化物薄膜。其中一些项目的目标是高温超导的起源，以及当它们与其他氧化物材料结合时，它们可能被利用到简单的电子元件中，比如巨大的磁阻锰氧化物。例如，我们将尝试用人工诱导的超导电性来生长多层膜。

This grant application proposes the acquisition and installation of a high pressure Reflection High-Energy Electron Diffraction (RHEED) system onto an existing custom-designed pulsed-laser ablation deposition (PLD) chamber. This in-situ characterisation tool will help monitor the surface of thin films during their growth. The information obtained will allow us to better control the growth processes in order to improve significantly the quality of the epitaxial thin films and even to target specific termination layers of the materials. Thus, it will play a major role in the control of the interface between two successive materials deposited in multilayered electronic devices that could exhibit exotic novel behaviours. All the projects will involve oxide-based thin films. Some of these projects target the origin of high temperature superconductivity and their possible harnessing into simple electronic components when combining them to other oxide materials like colossal magnetoresistance manganites. For example, we will attempt to grow multilayers with artificially-induced superconductivity.